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RE: math question



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Thanks to all who responded and offered some snippets of code.

I wasn't clear about combination vs. permutation and perhaps I have the 
concepts backwards, but to clarify:

Out of a list 1 through 20, I wanted 4 unique subsets of numbers like:

1, 2, 3, 4 or 10, 11, 15, 2

However, the order of the numbers are not important.  Therefore, 1, 2, 3, 4 
and 1, 2, 4, 3 and 3, 4, 2, 1 are treated as the same so I would accept one 
and reject the rest.

The code examples appear to do exactly that.

Thanks again